How much does a train ticket from Portsmouth to London cost?

The average train ticket price from Portsmouth to London is $44. The best way to find train tickets from Portsmouth to London is to book your tickets as early as possible. Prices tend to rise as your travel date approaches, so book in advance to secure the best prices!

How long is the train trip from Portsmouth to London?

A train trip between Portsmouth and London is around 2h 5m, although the fastest train will take about 1h 26m. This is the time it takes to travel the 65 miles that separates the two cities.

How many daily trains are there between Portsmouth and London?

The number of trains from Portsmouth to London can differ depending on the day of the week. On average, there are 37. Some trains are direct while others have layovers. Simplify your train trip from Portsmouth to London by comparing and selecting the train that fits your travel style and budget on Busbud.

Which train companies travel from Portsmouth to London?

When taking the train from Portsmouth to London, you can travel comfortably and safely with South Western Railway, Southern.

What are the best sights and things to do in London?

Once in London, you can exploring the city. The top sights and things to do are Madame Tussauds London, Kew Gardens, London Mithraeum, The British Museum, St Paul's Cathedral.

Train Portsmouth to London from $12

Next departures

Next departures for Portsmouth to London on September 18
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
4:03pm	Portsmouth and Southsea	2h 4m	6:07pm	Clapham Junction	Cheapest
3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
3:00pm	Portsmouth and Southsea	2h 4m	5:04pm	Waterloo	No tags
3:03pm	Portsmouth and Southsea	2h 12m	5:15pm	Victoria Rail Station	No tags
3:00pm	Portsmouth and Southsea	2h 4m	5:04pm	Waterloo	No tags

Next departures for Portsmouth to London on September 19
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
3:29pm	Portsmouth Harbour	2h 16m	5:45pm	Victoria Rail Station	Cheapest
8:20am	Portsmouth and Southsea	1h 44m	10:04am	Wimbledon	Fastest
7:32am	Portsmouth and Southsea	2h 22m	9:54am	Streatham	No tags
7:18am	Portsmouth and Southsea	1h 46m	9:04am	Wimbledon	No tags
7:32am	Portsmouth and Southsea	2h 22m	9:54am	Streatham	No tags

Next departures for Portsmouth to London on September 20
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
3:37pm	Portsmouth and Southsea	1h 54m	5:31pm	Clapham Junction	Cheapest
7:21am	Portsmouth and Southsea	1h 31m	8:52am	Waterloo	Fastest
7:00am	Portsmouth and Southsea	2h 4m	9:04am	Waterloo	No tags
7:04am	Portsmouth Harbour	2h 9m	9:13am	London Bridge	No tags
7:00am	Portsmouth and Southsea	2h 4m	9:04am	Waterloo	No tags

Next departures for Portsmouth to London on September 21
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
7:37am	Portsmouth and Southsea	1h 48m	9:25am	Barnes	Cheapest
3:37pm	Portsmouth and Southsea	1h 37m	5:14pm	Waterloo	Fastest
7:37am	Portsmouth and Southsea	1h 43m	9:20am	Waterloo	No tags
7:37am	Portsmouth and Southsea	1h 43m	9:20am	Waterloo	No tags
7:37am	Portsmouth and Southsea	1h 43m	9:20am	Waterloo	No tags

Next departures for Portsmouth to London on September 22
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
3:03pm	Portsmouth and Southsea	2h 4m	5:07pm	Clapham Junction	Cheapest
3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
7:18am	Portsmouth and Southsea	1h 36m	8:54am	Waterloo	No tags
7:32am	Portsmouth and Southsea	2h 13m	9:45am	Victoria Rail Station	No tags
7:18am	Portsmouth and Southsea	1h 36m	8:54am	Waterloo	No tags

Next departures for Portsmouth to London on September 24
Departure time	Departure location	Trip duration	Arrival time	Arrival location	Recommended
3:03pm	Portsmouth and Southsea	2h 4m	5:07pm	Clapham Junction	Cheapest
3:20pm	Portsmouth and Southsea	1h 31m	4:51pm	Waterloo	Fastest
7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags
7:32am	Portsmouth and Southsea	2h 25m	9:57am	Wandsworth	No tags
7:18am	Portsmouth and Southsea	2h 1m	9:19am	Wandsworth Town	No tags

Compare 3 ways to go from Portsmouth to London.

	Average Price	Average Duration	CO₂ emissions
Bus	Average Price$6 - $32	Average Duration2h 30m	CO₂ emissions 3kg CO₂e5 out of 5 stars	Cheapest
Train	Average Price$13 - $276	Average Duration2h 5m	CO₂ emissions 2kg CO₂e5 out of 5 stars	Most eco-friendly
Carpool	Average Price$10 - $10	Average Duration1h 40m	CO₂ emissions 4kg CO₂e4 out of 5 stars	Fastest

Busbud recommends carpooling from Portsmouth to London

Among the sustainable travel choices, the carpool stands out as the good way to reach London. The journey takes about 1 hour 40 minutes and with fares starting at just $10, it presents an excellent value for a comfortable ride.

1carpool per day

1h 40mAverage Duration

$10Cheapest ticket

4kgCO₂ emissions

Train Portsmouth to London: Trip Overview

Please note, this information is subject to change.

Average ticket price$44

Average train trip duration2h 5m

Number of daily trains37

Earliest train departure6:55am

Distance65 miles (104 km)

Latest train departure11:14pm

Train Companies

South Western Railway

4/524 reviews

Staff4.5

Timeliness4.1

Cleanliness4.5

Wifi3.4

Users have reported a smooth service with comfortable trains and effective heating. However, some feedback indicates that the staff at Portsmouth ticket office could be more welcoming, as there were concerns about communication when purchasing tickets through agencies.

South Western Railway Portsmouth London recent customer reviews

The staff at Portsmouth ticket office were quite unfriendly and they said that buying tickets through agencies is very unreliable and there is no communication between yourselves and them.

Karen M.

September 17, 2022

Smooth service, comfortable train with good heating.

Panagiota Lili T.

December 9, 2024

Southern

4/534 reviews

Staff5

Timeliness5

Cleanliness5

Wifi5

Train and bus companies in GB:RegioJet, FlixTrain, CrossCountry, Great Western Railway, Northern, Transpennine Express, London North Eastern Railway

Portsmouth to London Train

With Busbud, comparing and booking tickets for a train from Portsmouth to London is a breeze. Browse through an extensive selection of train fares and train schedules to find the best deals.

We make sure you can find a train service from Portsmouth to London from the most reliable train companies operating this trip.

Whether it is train tickets or first class train tickets going to London from Portsmouth, we help you find what you're looking for based on how much of a budget you have.

Frequently asked questions for your trip Portsmouth - London

How much does a train ticket from Portsmouth to London cost?
How long is the train trip from Portsmouth to London?
How many daily trains are there between Portsmouth and London?
Which train companies travel from Portsmouth to London?
What are the best sights and things to do in London?

Find cheapest prices for trains

Price is for a one-way ticket for one passenger and based on past searches.

Best price found

09/16

$59

09/17

$32

Today

$18

09/19

$19

09/20

$18

09/21

$15

09/22

$15

09/23

No data

The cheapest trip from Portsmouth to London was searched and found on Sep 21, 2025 with a price of $15

To save money and be sure you have the best seat, it's a good idea to buy your train tickets from Portsmouth to London, as early as possible.

You can expect to pay from $15 to $263 for a train ticket from Portsmouth to London based on the last 2 days. You can expect to find the cheapest price for the trip at $15 which is on 2025-09-21.

Usually South Western Railway will charge you higher prices for tickets closer to the departure date. To find the best prices, you should be flexible on your date of travel.

About Train Travel

Train Travel Tips

Taking the fastest trains allows you to travel at speeds greater than 300 km/h. Taking a trip from Portsmouth to London is not only much quicker but more comfortable too! You can usually travel directly to the city centre and save time while you're at it.

Regional train? High-speed train? Whichever train to London you take, you’ll help reduce the environmental impact and carbon footprint of your trip. As you watch the landscapes unfold before your eyes, you can tell yourself that with this choice, you are making sure they remain protected.

By choosing the train between Portsmouth and London, you emit up to 30 times less CO2 than for the same journey made by plane or car!

Make a music playlist for your train ride from Portsmouth to London, and enjoy the scenery to tunes from your own personal soundtrack.

Did you know?

Railway companies played a major role as early as 1883 in the use of time zones as we know them today.

The longest train journey in the world is between Europe and Asia. This long journey starts from Porto in Portugal and crosses the whole European continent to reach Hanoi in Vietnam in 12 days while traveling more than 17,000 km.

The first high-speed train line was inaugurated in 1964, in Japan, to connect Tokyo with Osaka. It was during the Olympics that the first passengers traveled aboard the Shinkansen at a speed of 210 km / h.

Will you be returning to Portsmouth by train?

Train from London to Portsmouth

Top Traveled Train Routes

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Trains tickets from Portsmouth to London